title: Soft tissue osteosarcoma with telangiectatic features: MR imaging findings in two cases.
abstract: Extraskeletal osteosarcomas are rare tumors, and the telangiectatic variety is the least common histological variety in this group. This report describes the clinical and MR imaging findings in two cases arising in the pretibial soft tissues. Both tumors demonstrated marked inhomogeneity with T2-weighted spin echo and STIR sequences. One of the tumors revealed numerous fluid levels within the lesion. A review of the MRI features of these tumors is provided. Osteosarcoma with telangiectatic features should be considered in the differential diagnosis of a soft tissue mass with fluid-fluid levels in patients 40 years of age or older.
authors.affiliation: Department of Radiology, Vancouver Hospital and Health Sciences Center, Vancouver Musculoskeletal Tumor Group, University of British Columbia, Canada.
authors.forename: J J
authors.initials: JJ
authors.lastname: Dubec
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
authors.forename: J X
authors.initials: JX
authors.lastname: O'Connell
authors.forename: M J
authors.initials: MJ
authors.lastname: Lee
authors.forename: D
authors.initials: D
authors.lastname: Janzen
authors.forename: D
authors.initials: D
authors.lastname: Connell
authors.forename: B
authors.initials: B
authors.lastname: Masri
authors.forename: P M
authors.initials: PM
authors.lastname: Logan
mesh_terms: D000368:Aged; D000671:Amputation, Surgical; D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000150:complications / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007866:Leg; D008279:Magnetic Resonance Imaging; D012516:Osteosarcoma / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012983:Soft Tissue Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D013684:Telangiectasis / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed